6. Bord na Móna Firelogs, manufactured by Bord na Móna Fuels Limited, Newbridge, County Kildare, Republic of Ireland, which—
(a)comprise slack wax (as to approximately 55% of the total weight) and hardwood sawdust (as to approximately 45% of the total weight);
(b)were manufactured from those constituents by a process of heat treatment and extrusion;
(c)are firelogs approximately 255 millimetres in length and 75 millimetres in diameter, with grooves along one longitudinal face;
(d)have an average weight of 1.3 kilograms per firelog; and
(e)have a sulphur content not exceeding 0.1% of the total weight.